Kaai Yoko

 Utaai Yoko, or better known as  Kaai Yoko, is VOYAKILOID derived from  VOCALOID2 Kaai Yuki, from AH-Software Co. Ltd., created by A-Daiya.

Creation
Yoko was just one of the first versions of VOCALOID that A-Daiya created for testing. It was based on Yuki and Haku.

There was no planning in voice or personality, only in appearance.

Currently
Her voice is recognized, and she has some cover's on YouTube. It has been recognized as a VOYAKILOID by some fandom users.

VOCALOID2
Yoko is pale, has red, empty eyes. She wears a black dress, with pantyhose, gloves and black boots. It has a white "bib" style. His white hair is black with pink bows - as he has one on his back, at the waist - in the shape of low pigtails.

VOCALOID4
Designed by PSICO, Yoko tends to wear a longer black dress, with long sleeves, something like a  'nun' .

Personality
For its users, Yoko is known for being apathetic, kuudere and not showing so much concern for others. It tends to be more with Yuki and Yuuki herself.

Information on vocal use
Below is Yoko Kaai's voice for VOCALOID2 and VOCALOID4.

Language
Like Yuki, Yoko is able to speak and sing fluently in: Yoko's voice is low and low, can sound a little hoarse and doesn't have much power on high notes. It may sound a little whispery.
 * Japanese

VOCALOID2

 *  Original/Natural: Yoko's voice is lower than Yuki's, and may even sound a little masculine. In low grades. His voice is limited because it is not that of a professional singer, but that is what gives his childlike and cute voice realism.

VOCALOID4

 * Natural:  Yoko's voice receives improvements and updates to the V4 platform, adapting and improving the use of the singer.

Notable songs

 *  Meltdown (music box version): Yoko sings this song with Yuki. Cover made by PSICO, in test version.
 *  Kuusou Mesorogiwi: Cover made by KoriYL.

Relationships

 * Yuki Kaai: You tend to stay with her, your relationship is not clear.
 * Yuri Kaai: Their relationship is not clear.

Curiosities

 * Yoko is played by staying in cemeteries, with  'John'  and  'Jenny' .
 * Its creator draws it a lot with Yuki and Yuuki, so Yoko is presumed to be very close to them.